By: Nurma Khoirun Nisa’ IX A class. 1. Quantity International Unit System: International Unit System: –Quantity which are usually used in physics are.

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Presentation on theme: "By: Nurma Khoirun Nisa’ IX A class. 1. Quantity International Unit System: International Unit System: –Quantity which are usually used in physics are."— Presentation transcript:

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1. Quantity International Unit System: International Unit System: –Quantity which are usually used in physics are divided into two: –Fundamental quantity is quantities of units of which are predetermined and they are not derived from another quantities. –Derived quantity is quantities which are derived from fundamental quantity.

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2. Mass Mass: Mass: Mass is constant in everywhere. But weight is influenced by gravitational force in place.

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3. Density (II) (Proportional of density an object and density of water) (Proportional of density an object and density of water) (Proportional of density between some objects) (Proportional of density between some objects)

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Floating force/ force to up Floating force/ force to up FA = wu – wf FA = ρ.V.g 8. Pressure FA= force to up (N) wu= weight of object in air (N) wf= weight of object in liquid (N) V= volume of liquid that be moved (m³) ρ = density of liquid (kg/m³) g = gravitational acceleration (m/s²) ρ.V.g are weight of liquid that be moved by object when object is dipped to liquid

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12. Sound d = deep (m) v = the velocity of sound (m/s) t = time (s) This formula can be used for measure the deep of water (sea) or cave. Ultrasonic wave Velocity of sound V=Velocity of sound (m/s) ג =the distance of wave (m) f=frequency of sound T=period of sound